Electron Emission from Stripes

This image graphs the calculated amount of electrons emitted by copper-based superconductors when exposed to ultraviolet light. The color pattern ranges from low emissions (light blue) to very high emissions (white). The unique patterns seen in the image are a consequence of the superconducting electrons arranging themselves in a stripelike pattern.

The graph plots the intensity at the Fermi energy in one quadrant of the two dimensional Brillouin zone. The original Fermi surface can be seen as a circular arc, with various images appearing due to zone folding by the magnetic stripe wavevector. The images in the upper left and lower right corners are the pockets observed by quantum oscillation measurements.

This figure was created using Igor software. Image Credit: Michael Norman